Home / 77,405.06-106,720.07-50,132.94

Finding the Fourth Proportional to 77,405.06, 106,720.07 and 50,132.94

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Solution

The fourth proportional to 77,405.06, 106,720.07 and 50,132.94 is: 69,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,405.06 : 106,720.07 = 50,132.94 : x
  2. Step 2: Convert to fraction form
    77,405.06/106,720.07 = 50,132.94/x
  3. Step 3: Cross multiply
    77,405.06x = 106,720.07 × 50,132.94
  4. Step 4: Simplify right side
    77,405.06x = 5,350,190,615.44
  5. Step 5: Solve for x
    x = 5,350,190,615.44/77,405.06
  6. Step 6: Final answer
    x = 69,119.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.